Internal-combustion engine of the sleeve-valve type.



PL CHORUGN.

INTERNAL COMBUSHGN ENGINE OF THE SLEEVE VALVE TYPE.

Mme/mar: man AUG. 11*. 1915.

Patentefi Dec.

3 SHEETS-SHEET 1.

H. CHURLTON.

NAL COMBUSTION ENGSNE OF THE SLEEVE VALVE TYPE.

INTER APPLICATIGI FILED AUG. 24, I915.

Patented Em. 2%, 1918.

3 SHEETS-SHEET 2.

ii Q hr; Shaw-141 01- 3513 aflomxmg I k H CHURLTON. I mam/u cowsusnow meme Of THE SLEEVE VAL-VE TYPE. APPLICAUON FILED AUG. 1- .,1915. I L528??? Patented Dec. 24, 1918.

3 SHEETS-SHEET 3.

witwcooeaz I v I arwamtoig HER-BERT CHORLTON, OF HUNTINGTON, NEW YORK.

INTERNAL-COMBUSTION ENGINE OF THE SLEEVE-VALVE TYPE.

Specification of Letters Patent.

Patented Dec. 24,1918.

Application filed August 14, 1915. Serial No. 45,483.

To all whom it may concern:

Be it known that I, HERBERT CnonL'roN, a citizen of the United States, residing at Huntington, in the county of Suttolk and State of New York, have invented certain new and useful Improvements in Internal- Combustion Engines of the Sleeve-Valve Type; and I hereby declare that the following is a full, clear, and exact description of the same.

My present invention relates to internal combustion engines of the sleeve valve type. The principal objects of my invention are to produce an internal combustion motor of the sleeye valve type in which the piston and theisle eve, valves may be properly cooled and lubricated, and in which the formation of carbon in the combustion chamber, due to excess of lubricating oil in said chamber, will be practically eliminated. These and the other objects of my invention will be more fully explained and pointed out in the following specification and accompanying drawings, in which Figure 1 is a vertical sectional view of an engine cylinder and crankcase, disclosing my invention, Fig. 2

is a plan view partly in section, and Fig.

is a vertical sectional view of a modification of my invention.

Similar numerals refer to similar parts throughout the several views. 1

In the drawings the crank case 1 is provided with a removable bottom portion 2, secured in place by studs The crank shaft 4 is mounted in bearings of the usual type. 6 is the connecting rod, 7 the piston. which is mounted to reciprocate in the cylinder 8, which is provided with a water-jacket 9. 9 is the intake pipe connection and 9" the discharge pipeconnection. The cylinder 8 is concentrically mounted in a cylindrical housing 10, which is secured to the crank case by studs 11, the cylinder being secured in the casing 10 by studs 12. Between the outer walls of the cylinder and the casing 10 is a concentric cylindrical chamber 13, in which are mounted the sleeve valves 14 and 15.

The walls of the cylinder are provided with intake ports 16 and outlet ports 17. and the casing with intake port 18 and outlet port 19, and the sleeve ll with intake ports 20 and outlet ports 21. and the sleeve 15 with intake ports 22 and outlet ports 23. The crank shaft 2-l is mounted in a separate chamber and is operated by the gears 26 and 27, and the chain 28. A connecting rod'29 causes the sleeve 14 to reciprocate in the cham' her 13, and a connecting rod 80 causes tlie' sleeve 15 ito also reciprocate in said chamber, there y causing theports 20 and 22 to register with the ports 16 and 18 on the intake stroke of the piston, and the ports 21 and 23 to register with the ports 17 and 19 on the exhaust stroke of the piston. The sleeves Hand 15 also act as a pump and on the downward movement create a partial. vacuum in the upper part of the chamber 13, which causes oil to be drawn from the lower part of the chamber 25, through the pipe 31, into the upper part of the chamber 13. On the upward stroke the oil in the chamber 13 is forced down between the walls of the cylinder, the sleeves and the casing, and .any'75 excess is returned to the chamber 25 through the pipe 32. The. pipe 31 is provided with the ball check valve 38, which permits oil to flow from the chamber 25 tothe chamber.

13, but prevents the flow of oil from the chamber 13 through the pipe 31 intothe chamber 25. Pipe 32 is provided with a ball check valve 3i which is normally closed, but permits the flow of oil from the chamber 13 to the chamber 25.

The construction shown in Fig. 3 is substantially the same as that shown in Fig. 1, except that the cylinder in which the piston operates is not provided with a waterjacket. the water-jacket 35, as shown in said Fig. 3, being in the outer casing instead of in the cylinder as shown in Fig. 1.

Herctofore it has been found cliflicult to properly lubricate the piston and sleeve valves in this type of motor, without supplying such a quantity of oil as to cause the oil to work its way into the combustion chamber and cause carbon in excessive quantities to form on the piston head and on the walls of the piston chamber. It is very de sirable that the reciprocating sleeve valves should 'be made as light as possible, particularly in a high-speed motor, which is recognized as the most desirable type. In the types of these motors which were previously constructed, where the sleeves were mounted around the piston and within the walls of the cylinder, the sleeves were compelled to take the Side thrust of the piston and, therefore, were of necessity constructed with walls so thin as to be unable to permanently withstand this very considerable strain .der 8, and H by contact with the wall of the the .inner sleeve.

.other source.

Rvithoiit being deformed from a cylindrical shape, or were of undue thickness .and weight. In this construction they were also subjected to undue friction of the piston. It was also found difiicult in the prior construction to properly cool the piston or All of these difliculties have been obviated by my invention. The lower ends of the sleeves 14 and 15 are lubricated by the splash of oil from the crank case 25, and the upper ends. of the sleeves by oil passing into the chamber 13 through the pipe 31, or from any The piston is cooled by con tact with the wall of the cylinder which is itself cooledby the water in the jacket 9, and the sleeves, except at the inletgend outletvports, do not come into contact with the burning gases and they likewise are cooled, 13 by contact with the outer wall of the cylinhousing 10, which housing may be waterjacketed-as shown in Fig. 3. By removing the pipe connectiont), andthe studs 12, the cylinder 8 may be withdrawn from the housing 10.

Having described my invention. what I claim as new is:

1. An-internal combustion engine comprising a crank case, a cylindrical housing, a cylinder concentrically mounted in said housing, a piston adapted to reciprocate in said cylinder, a concentric chamber between the cylinder and the housing, reciprocating, sleeve valves mounted in said concentric chamber, anv auxiliary crank chamberv closed against comnulnication with, the crank case, a crank shaft, connecting rods for operating said sleeve valves mounted in-said auxiliary crank chamber. and a pipein open communication with the lower part of the auxiliary crankchamber and said concentric chamber above said sleeve valves.

2. An internal combustion engine com prising a crank case, a cylindrical housing, a cylinder concentrically mounted in said housing, a piston adapted to reciprocate in said cylinder, a concentric chamber bet-Ween;

the cylinder and the housing, reciprocatin sleeve valves mounted in sald concentricm said concentric chamber above said sleeve valves I 3. Anjiiternal combustion engine comprising a crank case, a cylindrical housing,

a cylinder concentrically mounted in said housing, a piston adapted to. reciprocate in said cylinder, a concentric chamber-between the cylinder and the housing, reciprocating sleeve valves mounted in said concentric chamber, an auxiliary crank chamber, a crank shaft, connecting rods for operating said sleeve valves mounted in said auxiliary crank chamber, and means for conveying oil from the auxiliary crank chamber to said concentric chamber and returning the surplus oil so conveyed to said auxiliary crank chamber.

4. An internal combustion engine comprising a crank case, a cylindrical housing, a cylinder concentrically mounted in said housing, a piston adapted to reciprocate in said cylinder, a concentric cham'ber between the-cylinder and the housing,reciprocating sleeve valves mounted in said concentric chamber. an auxiliary crank chamber closed against communication with the crank case, a crank shaft. connecting rods for operating said sleeve valves mounted in said auxiliary crank chamber, and means actuated by the compression in the auxiliary crank chamber for conveying oil from the auxiliary crank chamber to said concentric chamber above said sleeve valves.

Signed at Huntington, in the county of Suffolk. and State of New York, this 26th day of July, 1915. x

HERBERT CHORLTON. Witnesses: I

Mxncann'r A. HEOK, EDWARD H. WILSON. 

